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    Hi,<br>
    <br>
    Thank you for your reply.<br>
    <br>
    Basically, the file does not exist,<br>
    Here the answer of `file matlabexception.o`:<br>
    <small>matlabexception.o: ERROR: cannot open `matlabexception.o' (No
      such file or directory)<br>
      <br>
      <big>so, where should it be? Why do not I have it?<br>
        <br>
        Thank you,<br>
        <br>
        Gianpaolo Gulletta<br>
      </big></small><br>
    <div class="moz-cite-prefix">On 17-02-2015 21:34, Tony Kelman wrote:<br>
    </div>
    <blockquote cite="mid:6CB299EC45F949C1B343CB4D2A14D803@TKsamsung"
      type="cite">Well does matlabexception.o exist? If not, then the
      previous steps weren't successful or you didn't run `make` yet. If
      so, what does `file matlabexception.o` say?
      <br>
      <br>
      <br>
      -----Original Message----- From: Gianpaolo Gulletta
      <br>
      Sent: Tuesday, February 17, 2015 1:26 PM
      <br>
      To: <a class="moz-txt-link-abbreviated" href="mailto:ipopt@list.coin-or.org">ipopt@list.coin-or.org</a>
      <br>
      Subject: [Ipopt] Setting up MATLAB interface in Linux 64 bit
      <br>
      <br>
      Hello everybody,
      <br>
      <br>
      I am having issues in compiling the source files in the
      $IPOPTDIR/Ipopt/contrib/MatlabInterface/src folder.
      <br>
      <br>
      Here the Makefile:
      <br>
      &lt;snip&gt;
      <br>
      <br>
      Here the problem:
      <br>
      <br>
      ----------------------------------------------------------------
      <br>
      <br>
      <br>
      Warning: You are using gcc version "4.8.2-19ubuntu1)".  The
      version
      <br>
              currently supported with MEX is "4.4.6".
      <br>
              For a list of currently supported compilers see:
      <br>
             
      <a class="moz-txt-link-freetext" href="http://www.mathworks.com/support/compilers/current_release/">http://www.mathworks.com/support/compilers/current_release/</a>
      <br>
      <br>
      <br>
         mex:  matlabexception.o  not a normal file or does not exist.
      <br>
      <br>
      make: *** [ipopt.mexa64] Error 1
      <br>
      I have just followed the guide at the link:
      <a class="moz-txt-link-freetext" href="http://www.coin-or.org/Ipopt/documentation/node18.html">http://www.coin-or.org/Ipopt/documentation/node18.html</a> and all the
      previous steps were successful.
      <br>
      <br>
      Can you help me?
      <br>
      <br>
      Thank you,
      <br>
      <br>
      Gianpaolo Gulletta
      <br>
      <br>
      <br>
    </blockquote>
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